HEIDENHAIN MANUALPLUS 4110 - Axis Directions and Reference Points; Understanding Axis Directions; Traverse Motion Control; Defining Coordinate System Reference Points

HEIDENHAIN MANUALplus 4110 Basic Knowledge 1.1
Axis directions and reference points
Axis directions
 X axis: the cross slide is referred to as
the X axis. All X-axis values that are
displayed or entered are regarded as
diameters.
 Z axis: the saddle is referred to as the
Z axis.
Traverse motions:
 Program a positive value to depart
the workpiece.
 Program a negative value to
approach the workpiece.
Reference points
 The machine datum (M) is the origin
of the machine coordinate system. As
a rule, the machine datum is at the
intersection of the Z axis with the
spindle surface.
 The workpiece datum (W) is the
origin of the workpiece coordinate
system. As a rule, the workpiece
datum is at the intersection of the Z
axis with the end surface.